Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais são as equipes visitantes quando o oval de Subiaco era o campo?
 ###Tabelas: CREATE TABLE course (course_id AUTO_INCREMENT PRIMARY KEY, Number INT, Name VARCHAR, Kilometer INT, Location VARCHAR, Length (in m) INT, Average climb (%) INT) CREATE TABLE week_1 (week_1_id AUTO_INCREMENT PRIMARY KEY, Home team VARCHAR, Home team score VARCHAR, Away team VARCHAR, Away team score VARCHAR, Ground VARCHAR, Crowd INT, Date VARCHAR) CREATE TABLE career_points_leaders (career_points_leaders_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Years VARCHAR, Goals INT, Assists INT, Points INT) CREATE TABLE legislation_sponsored_by_john_mccain (legislation_sponsored_by_john_mccain_id AUTO_INCREMENT PRIMARY KEY, Years covered VARCHAR, All bills sponsored INT, All amendments sponsored INT, All bills cosponsored INT, All amendments cosponsored INT, Bills originally cosponsored INT, Amendments originally cosponsored INT) CREATE TABLE grammy_hall_of_fame (grammy_hall_of_fame_id AUTO_INCREMENT PRIMARY KEY, Year recorded VARCHAR, Title VARCHAR, Genre VARCHAR, Label VARCHAR, Year inducted VARCHAR)  
SELECT Away team FROM week_1 WHERE Ground = Subiaco Oval